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Finding the Fourth Proportional to 31,407.58, 47,112.99 and 8,034.22

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Solution

The fourth proportional to 31,407.58, 47,112.99 and 8,034.22 is: 12,051.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,407.58 : 47,112.99 = 8,034.22 : x
  2. Step 2: Convert to fraction form
    31,407.58/47,112.99 = 8,034.22/x
  3. Step 3: Cross multiply
    31,407.58x = 47,112.99 × 8,034.22
  4. Step 4: Simplify right side
    31,407.58x = 378,516,126.52
  5. Step 5: Solve for x
    x = 378,516,126.52/31,407.58
  6. Step 6: Final answer
    x = 12,051.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.